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%I #8 May 06 2018 00:44:16
%S 1,2,6,10,4,18,22,16,12,28,36,46,30,40,52,60,42,58,72,88,112,66,70,82,
%T 78,96,100,106,130,126,102,136,148,162,108,166,180,138,156,172,150,
%U 178,250,190,210,196,192,228,240,198,280,226,232,238,222,268,282,306,262
%N a(1) = 1, a(n) = smallest number not included earlier such that both a(n) + 1 and a(n)*a(n-1) + 1 are primes.
%C Conjecture: every number p-1 is a term for all primes p.
%K nonn
%O 0,2
%A _Amarnath Murthy_, Aug 29 2003
%E More terms from _David Wasserman_, Mar 25 2005